Alicia keys, certainly has folks abuzz as she is vacationing with her husband, his ex-wife and their kid. His ex blamed the music superstar, in fact, for breaking apart her marriage but now they apparently have put I will all behind them at least for the sake of the kids. ABC's Linzie Janis has this singular family getaway. Reporter: Call them the ultimate modern family. Grammy winner Alicia keys seen here on vacation with her husband music producer swizz beatz. But sitting right next to them on the edge of her chair beatz's ex-wife, mashonda tifrere. This isn't the first time we've seen this. Demi and Bruce have done it, so ha have Reese and Ryan. It takes a lot of inner trepg and willingness to get along to pull something like that off. Reporter: Particularly since tifrere wrote I scathing letter to keys saying "You contributed to the ending of my marriage." The celebrity parents vacationing on the caribbean island of St. Barts also had their son in tow along with swizz beatz's 7-year-old song with tifrere. Beatz posting these on instagram. A far cry from all that bad blood in 2009. At the time tifrtifrerr claiming she had an affair with her husband and Keyes said "We didn't start seeing each other until months after they had separated." I was aware of all the false things that were being said about me and it definitely hurt." It appears both have put that behind hem. The children did not ask for the divorce so it's important that they be minimally impacted by it and that means that when they're around they need to see their parents getting along so they can be relaxed and enjoy a situation. Reporter: For "Good morning America," Linzie Janis, ABC news, New York. Thank you, Linzie. We asked you on our "Gma" flash poll, would you vacation with your ex for the sake of the kids? 37% saying yes, 63% said no. Two-third, one-third roughly. You know, I will say this, if it is about the kids you want your kids to model love. You want them to model cooperation and support and love and if that's what they are doing, if they've put their adult issues behind them and can all co-exist, and it's great for those kids to see that cooperation in what, let's be honest, for me increasingly seems the modern family of this day and age. Yep. Well said, josh.

This transcript has been automatically generated and may not be 100% accurate.

{"id":23048134,"title":"Alicia Keys Vacations with Husband, His Ex-Wife","duration":"3:00","description":"The singer, her husband and his ex-wife bury the hatchet for the sake of their children.","section":"GMA","mediaType":"Default"}